1979–1992 Ford Mustang Shop Manual (P/N B4972)

• Model coverage: The 374-page Haynes core manual covers all 1979-1992 Ford Mustang and 1979-1986 Mercury Capri models, with 2.3L four-cylinder, 3.3L inline-six, 2.8L and 3.8L V6, 4.2L and 5.0L V8, turbocharged, carbureted, and fuel-injected configurations.
• Engine repair coverage: Documents timing-belt and timing-chain work, cylinder-head and valvetrain service, oil-pump removal, piston and bearing inspection, engine removal, block and head overhaul, and initial start-up after rebuilding.
• Drivetrain and chassis work: Covers 4- and 5-speed manual transmissions, C4/C5/AOD/A4LD automatic transmission diagnosis and adjustment, clutch service and bleeding, driveshafts, universal joints, rear axles, Traction-Lok testing and overhaul, brakes, steering, and suspension.
• Electrical diagnosis: Adds Motorcraft alternator/regulator and starter bench tests, TFI-IV ignition fault isolation, fuse and circuit-breaker charts, gauge and power-window tests, wiper motor and switch checks, and an 11-view electrical component locator.
• Wiring support: Includes typical Haynes diagrams plus dedicated 1980, 1982, 1985, 1988, and 1992 files for power distribution, starting/charging, fuel injection, lighting, dashboard, wiper/washer, windows, locks, mirrors, seats, radio, and accessories.
• 671-page, 25-PDF set: Haynes Manual No. 654: 374 pages; 1979-82 Ford/Mitchell excerpts: 54 pages; 1985 charging, starting, and wiring: 34 pages; 1988-centered and cross-year articles: 137 pages; 1991-92 engine, wiring, and TSB material: 72 pages.

This repair package combines the Ford Mustang/Mercury Capri Automotive Repair Manual by Haynes with Ford/Mitchell articles and a one-page 1992 Mustang engine TSB index. It is not a single Mitchell publication. The material is suited to experienced home mechanics and technicians able to match procedures to the vehicle year, VIN code, engine build, and transmission, with suitable test equipment and lifting support.

Engine and Drivetrain Documentation

The Haynes volume handles routine service, in-vehicle engine repair, and general overhaul. Separate engine chapters cover compression testing, manifolds, cylinder heads, camshafts and followers, hydraulic lifters, timing systems, crankshaft seals, oil pans and pumps, and engine removal. The overhaul chapter adds block and head inspection, cylinder honing, valve service, pistons, connecting rods, bearings, reassembly, and initial start-up. Torque tables, fluid data, wear limits, clearances, and rebuilding specifications accompany the related assemblies.

The supplemental engine articles add 1979 Ford 200/250 six-cylinder, 2800 cc V6, and 302/351/400 V8 data; 1988 2.3L OHC and 5.0L V8 repair sections; and a 1991-92 cross-model 5.0L, 5.0L HO, and 5.8L V8 article. VIN/application tables support matching. The 1988 material distinguishes MPFI and turbo 2.3L engines as well as standard and HO 5.0L builds; standard and HO intake, cylinder-head, piston, camshaft, valve, and exhaust components are not interchangeable, and their firing orders differ. Generic Ford articles must be matched by application code rather than treated as proof that every listed displacement was installed in a Mustang or Capri.

Drivetrain information ranges from clutch inspection and hydraulic bleeding to axle-shaft bearings, pinion depth, bearing preload, backlash, propeller-shaft alignment, and Traction-Lok clutch-pack service. The transmission chapters cover diagnosis, routine service, linkage adjustment, seals, and unit removal and installation, but not a full internal manual or automatic transmission rebuild. Named tools include Camshaft Belt Tensioner T74P-6254-A, Lifter Bleed Down Wrench T71P-6513-B, Spring Lock Coupling Removers D87L-9280-A/B, and Alternator Shaft Holder T65P-10300-B.

Electrical and Accessory Data

The 1985 charging article identifies rear- and side-terminal Motorcraft alternators and separate regulators, then covers no-load, load, overvoltage, undervoltage, rectifier, diode, stator, rotor, and field-circuit tests before alternator overhaul. The starter article adds voltage-drop and load checks, bench testing, armature and field-circuit tests, inspection, and overhaul. TFI-IV documentation supplies model/VIN coverage, circuit diagrams, coil and harness checks, stator and module testing, distributor service, and electrical specifications.

Representative illustrations include the Exploded View of Ford Motor Co. Traction-Lok Differential, Cross-Sectional View of Engine Oil Circuit, Exploded View of Timing Belt & Components, TFI-IV Ignition System Wiring Diagram, Power Distribution - 1987 and Later Models, and Power Window Circuit, Convertible (1992). The Haynes wiring pages are typical rather than complete for every model year; the separate year files add model-year-specific circuits.

The 2.3L valvetrain section warns that rotating the crankshaft or camshaft before the lifters are collapsed after follower work can cause serious valve damage. The Motorcraft alternator article warns that turning a flat-type rectifier terminal screw during removal destroys its retaining serrations.

Follow the safety instructions tied to each procedure: support a raised vehicle with proper stands or a hoist, relieve fuel pressure before opening EFI lines, and disconnect the negative battery cable before electrical component removal. Live charging and starter tests require the specified circuit precautions. The one-page TSB file is an index of engine gasket, sealant, and cylinder-head-bolt updates, not the complete bulletin text.